diff --git a/drivers/gpu/drm/nouveau/nouveau_sgdma.c b/drivers/gpu/drm/nouveau/nouveau_sgdma.c
index ec76c0b4e452302e72a970a689462fd2e215b92c..23c377a6c761c15dbb2e75e68485d6885e939db4 100644
--- a/drivers/gpu/drm/nouveau/nouveau_sgdma.c
+++ b/drivers/gpu/drm/nouveau/nouveau_sgdma.c
@@ -106,6 +106,11 @@ nouveau_sgdma_create_ttm(struct ttm_bo_device *bdev,
 		nvbe->ttm.ttm.func = &nv50_sgdma_backend;
 
 	if (ttm_dma_tt_init(&nvbe->ttm, bdev, size, page_flags, dummy_read_page))
+		/*
+		 * A failing ttm_dma_tt_init() will call ttm_tt_destroy()
+		 * and thus our nouveau_sgdma_destroy() hook, so we don't need
+		 * to free nvbe here.
+		 */
 		return NULL;
 	return &nvbe->ttm.ttm;
 }